Excellent for killing moles, gophers, woodchucks, and yourself

That is damned genius.

I read once where you can use clorox and ammonia to kill beavers. Article said to dig a small hole into the beavers hut and get a 2" metal pipe in there. Make sure it penetrates the roof but does not extend below the waterline.

Wait a few days for the beavers to get accustomed to the pipe being there (since you disturbed their house installing it).

Then pour 1 quart of each into the pipe and leave the area immediately. I assume while you are holding your breath...

The mixture creates chloramine which is highly toxic.

The Nazis tried gaswagens Wiki Linky but they were too inefficient and afterward someone had to unload the sumbitch.

Portable gas chamber

After killing them, you can then disconnect from your muffler and connect to your outdoor faucet, and enjoy the cool, refreshing taste of faucet water combined with automobile exhaust.

My version of this was a 20 foot section of metal corrugated heater vent pipe, stuck down into an armadillo burrow and over the tailpipe of my truck. The exhaust gets pretty hot, so I am unsure how well a water hose would work, but the dryer vent pipe worked fine and no armadillo ever survived.

Pretty fricked up thing to do. None of those animals hurt anybody

not a bad product actually.